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| Description | |
|---|---|
| Quality of samples: | not specified / average specimens |
| Confirmation | |
| Validity: | Believed Valid |
| References | |
| References: | Guidebook for the Butte Field Meeting of the Society Of Economic Geologists, 1973 |
| Data | |
| Mineral Data: | Click here to view Chlorite Group data |
| Locality Data: | Click here to view Steward Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA |
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